Effect of tool wear evolution on chip formation during dry machining of Ti-6Al-4V alloy

被引：55

作者：

Dargusch, Matthew S. ^{[1
,3
]}

Sun, Shoujin ^{[2
,3
]}

Kim, Ji Won ^{[1
]}

Li, Tong ^{[4
,5
,6
,7
,8
]}

Trimby, Patrick ^{[4
,9
]}

Cairney, Julie ^{[4
,5
]}

机构：

[1] Univ Queensland, Ctr Adv Mat Proc & Mfg, Sch Min & Mech Engn, Brisbane, Qld 4072, Australia

[2] Swinburne Univ Technol, Fac Sci Engn & Technol, Hawthorn, Vic 3122, Australia

[3] Def Mat Technol Ctr, Hawthorn, Vic, Australia

[4] Univ Sydney, Australian Ctr Microscopy & Microanal, Sydney, NSW 2006, Australia

[5] Univ Sydney, Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia

[6] Ruhr Univ Bochum, Inst Mat, Univ Str 150, D-44780 Bochum, Germany

[7] Ruhr Univ Bochum, Mat Res Dept, Univ Str 150, D-44780 Bochum, Germany

[8] Ruhr Univ Bochum, ZGH, Univ Str 150, D-44780 Bochum, Germany

[9] Oxford Instruments NanoAnal, Halifax Rd, High Wycombe HP12 3SE, Bucks, England

来源：

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE | 2018年 / 126卷

关键词：

Deformation structure; Titanium alloys; Twinning; Machining; Electron backscattering diffraction (EBSD); TITANIUM-ALLOY; DEFORMATION;

D O I：

10.1016/j.ijmachtools.2017.12.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The complex microstructure of segmented chips and the changing deformation mechanisms during the machining of the Ti-6Al-4V alloy for a given cutting tool have been explored. Chip geometry and microstructure were investigated for increasing volumes of material removed at a cutting speed at which the tool characteristically develops gradual flank wear. The degree of chip segmentation and deformation mode changed significantly as machining progressed from using a new tool towards a worn tool. Chip formation processes when machining near the end of the cutting tool life is characterised by increasing amounts of twinning formed through both tension and compression.

引用

页码：13 / 17

页数：5

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